Catheter



March 6, 1928.

L. A. NIELSEN CATHETER Filed Sept. 25. 1924 INVENTOB low; A /V/L 55/! ATTORNEYS Patented Mar. 6, 1 928.

. UNITEDLSTATES v 1,661,494 A NT C i LOUIS. a. NIELSEN, or NEW Yonx, n.Y.

CATHETER.

Appltca tionflled September 25, 1924;. Serial N0. 739,778.

It is well known that one whose physical condition requires the drainageof the bladder bymeans of a catheter finds it inconvenient to have hiswants attended to without 5 periodic services of a physician. The purpose of the present invention is to provide a catheter, or drainagetube, with a support in the fornrof an envelope through which the tubeis extended and to which it is secured,

10 the construction being such that the user himself may adjust the tubeand by means of the support aii'orded by the envelope continue to wearthe device with comparative comfort while attending to his daily dutiesand without resorting to his physician, when necessity requires.

In the drawings, Figure (1) is a view in elevation of the catheter andits support; Figure (2) a central vertical section of the same, andFigure (3) a view partly in section and partly in elevation showing theenvelope rolled back on itself.

Referring to the drawings the numeral 1 designates a drainage tube ofusual and 26 well known construction. It is preferable, for my purposes,that it be made of soft rubber and provided with openings (2) near itsupper end through which the urine is permitted to enter the tube wheninserted in the bladder in the usual manner. A clamp (3) of knownconstruction encircles the tube near its lower end and permits thenecessary discharge when released. In the embodiment of my inventionillustrated in the drawings an envelope (4) of substantially greaterdiameter than that of the tube 1 1) surrounds a portion of the tube sothat the latter projects at both ends beyond the envelope. At its lowerend the envelope is secured to the tube preferably by forming theenvelopewith a short neck (5) having an internal diameter substantiallythe same as the external diameter of the tube and cementing the partstogether or otherwise forming a firm union between them. The envelope ismade of waterproof material, preferably soft rubber, and in that casethe union between it and the tube (1) may be made by using a.vulcanizable cement. At its upper end the envelope is free from the tubeand is provided with any convenient means for holding it on the wearerwhen adjusted in position. Preferably this is effected by makingtheentire envelope of rubber or of an elastic fabric, or at least the upperor neck portion (6) thereof may.

.velope bein i be sov Thus reason of its elastio- \ity thevenvelopewillretain both itself, and

the, tube in proper position upon the wearer and avoid the use of tyingtapes or other holding means. If desired, the mouth of the envelope maybe formed with a relatively heavy bead (7) to provide additionalsecurity in holding the device in place.

The device being more particularly intended for men is applied asfollows: The drainage tube is passed through the urethra, as is usualuntil the upper end thereof enters the bladder and is in position todrain the same through the openings (2). In sov adjusting the tube theenvelope (4) 'is drawn over the penis and by reason of its elasticity,or of the contracted neck portion (.6) thereof, a substantially tightfit is secured at least sufficient to hold the envelope and tube inproper position. The'device can be worn without discomfort thus enablingthe user to go about his daily duties without requirmg the services of aphysician to attend to his wants. \Vhen the bladder is to-be dischargedit is readily done by releasing the I clamp (3). 4

In applying the device it can'be done by rolling the envelope back uponitself as shown in Fig. 3. This permits the tube to be inserted withoutinterference from the envelope and after the tube is properly positionedthe envelope is unrolled so as to enclose the penis and be held firmlythereon.

If desired, absorbent cotton (8) may be placed in the lower part of theenvelope to absorb any leakage occurring around the tube (1). hennecessary the device may be removed, cleaned and replaced by the userhimself. Y

VVh-at I claim is:

1. Means to enable at will drainage of the bladder irrespective of thecondition of the sphincter muscle, comprising a drainage tube of alength to extend past the sphincter into the bladder, and means to holdthe tube in place,comprising an envelope of a size to loosely receivethe male organ, reduced at one end to provide a relatively short neckembracing the tube and secured thereto with a fluid tight joint, andreduced at the other end to provide a relatively long neck to embracethe organ thereby to support the envelope with the tube in place, saidenk of resilient. waterproof material, and t e neck of a diametertograsp the organ with sufilcientfirmness to hold the thereon, and acatheter tube extending through the envelope and well beyond the same atboth ends and far enough at the open end to pass beyond the sphinctermuscle of the bladder when the envelope is in place, the envelopesecured to the tube at the closed end with a fluid tight joint, and aclamp upon the lower projecting end of the tube.

LOUIS A. NIELSEN.

